カスタムDjangoフォームのClean（）メソッドが呼び出されていない

Question

の実験 のクラスは、複数のフィールドに依存するクラスの条件を検証する必要があります。 ExperimentFormに「クリーン」メソッドを指定しましたが、検証方法は決して発生しません。モデルの検証エラーは完全に表示されます。

これはforms.pyがどのように見えるかです：

from django import forms 
from django.utils.translation import ugettext, ugettext_lazy as _ 

class ExperimentForm(forms.Form): 
    name = forms.CharField(max_length=254) 
    student_n = forms.IntegerField() 
    expert_n = forms.IntegerField() 
    student_cmd_n = forms.IntegerField() 
    expert_cmd_n = forms.IntegerField() 
    is_active = forms.BooleanField() 

    error_messages = { 
     'insufficient_assignments': _("The total number of commands to be evaluated must be" 
        "Greater than 28. Right now it's %(command_number)"), 
    } 

    def clean(self): 
     cleaned_data = super(ExperimentForm, self).clean() 
     s_n = cleaned_data.get("student_n") 
     e_n = cleaned_data.get("expert_n") 
     s_cmd_n = cleaned_data.get("student_cmd_n") 
     e_cmd_n = cleaned_data.get("expert_cmd_n") 
     command_number = s_n*s_cmd_n + e_n*e_cmd_n 

     if command_number < 28: 
      raise forms.ValidationError(
       self.error_messages['insufficient_assignments'], 
       code='insufficient_assignments', 
       params={'command_number': command_number}, 
      ) 
     return self.cleaned_data 

これはmodels.pyは、次のように定義されている私のviews.py

from __future__ import unicode_literals 
from django.shortcuts import render 
from django.http import HttpResponse 
from django.template import loader 
from django.core.urlresolvers import reverse_lazy 
from vacs.forms import ExperimentForm 
from django.views.generic import TemplateView,ListView 
from django.views.generic.edit import FormView, CreateView, UpdateView, DeleteView 
from django.views.generic.detail import DetailView 
from vacs.models import Experiment 

class ExperimentView(FormView): 
    template_name = 'vacs/experiment.html' 
    form_class = ExperimentForm 
    success_url = '/vacs/experiments/' 

    def form_valid(self, form): 
     return super(ExperimentView, self).form_valid(form) 

class ExperimentDetailView(DetailView): 
    model = Experiment 

class ExperimentListView(ListView): 
    model = Experiment 

class ExperimentCreateView(CreateView): 
    model = Experiment 
    success_url = reverse_lazy('experiment_list') 
    fields = ['name', 'student_n', 'expert_n', 'student_cmd_n', 'expert_cmd_n'] 

class ExperimentUpdateView(UpdateView): 
    model = Experiment 
    success_url = reverse_lazy('experiment_list') 
    fields = ['is_active' ] 

class ExperimentDeleteView(DeleteView): 
    model = Experiment 
    success_url = reverse_lazy('experiment_list') 

です：

# -*- coding: utf-8 -*- 
from __future__ import unicode_literals 
from django.db import models 
from django.core.validators import MaxValueValidator, MinValueValidator 
from django.utils.encoding import python_2_unicode_compatible 
from django.contrib.auth.models import User 
from django.db import models 
from jsonfield import JSONField 
import collections 

class Experiment(models.Model): 
    name = models.CharField(max_length=200) 
    student_n = models.IntegerField(default=0, 
      validators=[MinValueValidator(0)]) 
    expert_n = models.IntegerField(default=0, 
      validators=[MinValueValidator(0)]) 
    student_cmd_n = models.IntegerField(default=2, 
      validators=[MinValueValidator(2)]) 
    expert_cmd_n = models.IntegerField(default=1, 
      validators=[MinValueValidator(1)]) 
    is_active = models.BooleanField(default=True) 
    replications = JSONField(load_kwargs={'object_pairs_hook': collections.OrderedDict}, 
      blank=True) 

最後に、テンプレートexperiment_form.html：

{% extends "vacs/base.html" %} 
{% load widget_tweaks %} 
{% block content %} 

{% if form.errors %} 
<div class="alert alert-danger" role="alert"> 
    Form error! 
</div> 
{% endif %} 

<form method="post">{% csrf_token %} 
    {{ form.as_p }} 
    <input type="submit" value="Submit" /> 
</form> 

{% endblock %} 

ありがとうございました！

Answer 1

モデルのsaveメソッドを上書きする必要があります。

のでclean_fields()実行し、clean()は、モデルに次のメソッドを追加する

def save(self, *args, **kwargs): 
    self.full_clean() 
    return super().save(*args, **kwargs)